CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC P0604 INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR
DTC DETECTING CONDITION:
Detected when two consecutive driving cycles with fault occur.
TROUBLE SYMPTOM:
TCM RAM malfunction
STEP | CHECK | YES | NO |
1.CHECK DTC.
1) Perform the Clear Memory Mode using the Subaru Select Monitor. Clear Memory Mode">
2) Read the DTC.
Is DTC P0604 displayed?
Replace the TCM. Transmission Control Module (TCM)">
Current condition is normal. Check for interference from noise, etc.
1. OUTLINE OF DIAGNOSIS
• Detect the malfunction in RAM area of the TCM.
• Judge as NG if an attempt to write to RAM area failed.
2. EXECUTION CONDITION
Secondary Parameters | Execution condition |
12 V battery system voltage | ≥ 10 V |
3. DIAGNOSTIC METHOD
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Malfunction Criteria | Threshold Value |
Writing-check (RAM) NOTE: |
This check is carried out about the RAM only used for CAN communication.
Error
Time Needed for Diagnosis: Immediately
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
Replacement
SECURITY AND LOCKS > Access KeyREPLACEMENT1. ACCESS KEY REGISTRATIONNOTE:• A maximum of seven access keys can be registered for each individual vehicle.• When replacing or adding an access key, new registration of the access key is necessary.• When the access key has been newly ...
Removal
INSTRUMENTATION/DRIVER INFO > Combination MeterREMOVAL1. Disconnect the ground cable from battery. NOTE">2. Release the lock, tilt the steering column to the lowest end and fully extend the column by the telescopic system.3. Release the screws, clips and claws, and remove the visor - com ...
System temporary stop indicator
System temporary stop indicator
This indicator appears when the system is
used under the following conditions.
Extremely high or low temperatures
When abnormal voltage exists for the
vehicle battery
When the radar sensor is significantly
misaligned
Once the above conditions are ...